If the automatic option doesn't work for your schedule, you can manually select a different flight.
: Try calling the airline's international customer service numbers (e.g., Canada or UK offices). They can often assist with rebooking and typically have shorter hold times than domestic lines during mass disruptions. Refunds | US Department of Transportation how to buy cancelled flight tickets
: Immediately check your airline's mobile app or website under "Manage Trip" to see if a new itinerary has been assigned. If the automatic option doesn't work for your
Most major airlines, such as American Airlines and United Airlines , will automatically attempt to rebook you on their next available flight to your destination at no additional cost. Refunds | US Department of Transportation : Immediately
: Use the airline’s app or website to browse other available flights. This is often the fastest way to secure a seat before others in the same situation take them.